| Abstract: | Degree of pyritization (DOP) is a measure of the ratio pyrite iron/(pyrite iron + reactive iron) that can be related to the depositional environment of a sediment. Several methods of DOP determination have been used but not systematically evaluated. The determination/extraction of reactive (usually acid soluble) iron is critical to the DOP determination, and the method generally used is reaction of the sample for 1 to 2 min with hot 12 N HCl. We present results for timed experiments with 1 N, 6 N, and 12 N HCl on three different samples. We also show that a 24 h room temperature treatment with 1 N HCl is equivalent to the 24 h treatment with Na-dithionite. Experiments with several suites of samples show that all three of these methods leach comparable amounts of iron; therefore, the DOP values are similar. However, the 1 N HCl, 24 h procedure is preferable because laboratory handling is less and easier. ?? 1990. |
| Genre: | Article |
| ProdID: | 70016074 |
| Citation Author: | Leventhal, J.; Taylor, C. |
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| Citation End Page: | 2625 |
| Citation Issue: | 9 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geochimica et Cosmochimica Acta |
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| Citation Number Of Pages: | 5 |
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| Citation Search Results Text: | Comparison of methods to determine degree of pyritization; 1990; Article; Journal; Geochimica et Cosmochimica Acta; Leventhal, J.; Taylor, C. |
| Citation Start Page: | 2621 |
| Citation Volume: | 54 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Comparison of methods to determine degree of pyritization; 1990; Article; Journal; Geochimica et Cosmochimica Acta; Leventhal, J.; Taylor, C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
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